Battery equipment

Abstract

The utility model belongs to the technical field of batteries, and particularly relates to a battery device which comprises a battery cell, a protection circuit board and a transmission terminal, the battery cell, the protection circuit board and the transmission terminal are all arranged in an installation shell, the protection circuit board is fixedly connected with the installation shell, and the top of the transmission terminal abuts against a limiting part of the installation shell. The bottom of the transmission terminal abuts against the limiting groove of the protection circuit board, and the electric core and the transmission terminal are electrically connected to the protection circuit board. The utility model has good structural stability, and can improve the safety of battery operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and in particular relates to a battery device. Background Art

[0002] The fixing effect of the protection circuit board in the existing battery products is poor, and the output mode of the existing battery is single and the output stability is poor, which seriously affects the stability of the battery structure. Therefore, it is urgent to propose a new technical solution to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a battery device with good structural stability and capable of improving the safety of battery operation in view of the deficiencies in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A battery device comprises a battery cell, a protection circuit board and a transmission terminal, wherein the battery cell, the protection circuit board and the transmission terminal are all arranged inside a mounting shell, the protection circuit board is fixedly connected to the mounting shell, the top of the transmission terminal abuts against a limiting portion of the mounting shell, the bottom of the transmission terminal abuts against a limiting groove of the protection circuit board, and the battery cell and the transmission terminal are electrically connected to the protection circuit board respectively.

[0006] As an improvement of the battery device of the utility model, a positioning frame is further provided inside the mounting shell, the battery cell is arranged in the accommodating cavity of the positioning frame, and the positioning frame is fixedly connected to the protection circuit board and the mounting shell respectively.

[0007] As an improvement of the battery device of the utility model, the side of the positioning frame away from the protection circuit board has a positioning portion, the side of the battery cell close to the protection circuit board is connected to the protection circuit board through a first adapter, and the side of the battery cell away from the protection circuit board abuts against the positioning portion.

[0008] As an improvement of the battery device of the present invention, the first adapter extends from a side of the battery cell facing the protection circuit board to a side of the protection circuit board facing away from the battery cell, and an insulating member is provided between the side of the protection circuit board facing the battery cell and the first adapter.

[0009] As an improvement of the battery device of the utility model, a second adapter is connected to a side of the battery cell away from the protection circuit board, and the second adapter is connected to the thermal monitoring module of the protection circuit board through a wire.

[0010] As an improvement of the battery device of the utility model, the mounting shell is provided with a slot corresponding to the transmission terminal, the limiting portion is provided corresponding to the slot, and the transmission terminal is embedded in the slot.

[0011] As an improvement of the battery device of the utility model, the mounting shell includes an upper shell and a lower shell which are sealed and connected, the protection circuit board and the transmission terminal are both mounted on the upper shell, and the outer surface of the upper shell has a guide groove.

[0012] As an improvement of the battery device of the utility model, the side of the positioning frame close to the protection circuit board has a through column penetrating the protection circuit board, the mounting shell has a through hole corresponding to the through column, and the through column is sealed and connected to the through hole through a fixing member.

[0013] As an improvement of the battery device of the present invention, the positioning frame has a plurality of spaced-apart accommodating cavities, the positioning frame has a blocking portion separating the accommodating cavities, and each of the accommodating cavities accommodates a battery cell.

[0014] As an improvement of the battery device of the utility model, the positioning frame has a plurality of limit columns on one side close to the protective circuit board, the protective circuit board has a through slot corresponding to the limit column, the limit column is passed through the through slot, or the limit column is locked with the through slot by a clamping piece.

[0015] The beneficial effects of the utility model are as follows: the battery equipment of the utility model comprises a battery cell, a protection circuit board and a transmission terminal, the battery cell, the protection circuit board and the transmission terminal are all arranged inside the mounting shell, the protection circuit board is fixedly connected to the mounting shell, the top of the transmission terminal abuts against the limiting part of the mounting shell, the bottom of the transmission terminal abuts against the limiting groove of the protection circuit board, the battery cell and the transmission terminal are electrically connected to the protection circuit board respectively, and by stably limiting the protection circuit board and the transmission terminal, the overall poor reliability of the battery can be avoided, and the stable and reliable output of the battery can be ensured, the battery cell, the protection circuit board and the transmission terminal are all arranged inside the mounting shell, the structural strength of the mounting shell is high, the stability of the battery structure can be improved, and the safety of the battery operation can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the battery device of the present utility model.

[0017] Figure 2 This is an assembly structure diagram of the protection circuit board and the transmission terminal of the utility model.

[0018] Figure 3 It is an exploded schematic diagram of the battery device of the present utility model.

[0019] Figure 4 It is an exploded schematic diagram of the protection circuit board and the positioning frame of the utility model.

[0020] Figure 5 It is an exploded schematic diagram of the positioning frame and the lower shell of the utility model.

[0021] Figure 6 It is a structural schematic diagram of the positioning frame of the utility model.

[0022] Among them: 1. battery cell; 2. protection circuit board; 20. limiting groove; 21. through groove; 3. transmission terminal; 4. mounting shell; 40. limiting part; 400. slot; 41. upper shell; 42. lower shell; 43. guide groove; 44. through hole; 5. positioning frame; 50. accommodating cavity; 51. positioning part; 52. through column; 53. blocking part; 54. limiting column; 6. first adapter; 7. insulating part; 8. second adapter; 80. wire; 9. fixing part. DETAILED DESCRIPTION

[0023] If certain words are used in the specification and claims to refer to specific components, those skilled in the art should understand that manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. As mentioned throughout the specification and claims, "including" is an open term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0024] In addition, the terms "first", "second", etc. are only used for descriptive purposes to distinguish different objects, rather than to describe a specific order or a relationship of primary and secondary. They cannot be understood as indicating or implying relative importance.

[0025] In the utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0026] The following is combined with Figures 1 to 6 The utility model is further described in detail with specific embodiments, but is not intended to limit the utility model.

[0027] Example 1

[0028] A battery device such as Figures 1 to 4 As shown, it includes a battery cell 1, a protection circuit board 2 and a transmission terminal 3. The battery cell 1, the protection circuit board 2 and the transmission terminal 3 are all arranged inside the mounting shell 4. The protection circuit board 2 is fixedly connected to the mounting shell 4. The top of the transmission terminal 3 abuts against the limiting portion 40 of the mounting shell 4, and the bottom of the transmission terminal 3 abuts against the limiting groove 20 of the protection circuit board 2. The battery cell 1 and the transmission terminal 3 are respectively electrically connected to the protection circuit board 2. The protection circuit board 2 can be a PCM board, which can improve the safety of the operation of the battery cell 1. The transmission terminal 3 can be used as the lead-out terminal of the battery cell 1, which can improve the stability and flexibility of electrical transmission.

[0029] Preferably, see Figures 3 to 6 A positioning frame 5 is further provided inside the mounting shell 4, and the battery cell 1 is provided in the accommodating cavity 50 of the positioning frame 5, and the positioning frame 5 is fixedly connected to the protection circuit board 2 and the mounting shell 4 respectively. More preferably, the positioning frame 5 has a plurality of accommodating cavities 50 distributed at intervals, and the positioning frame 5 has a blocking portion 53 separating each accommodating cavity 50, and the blocking portion 53 can improve the insulation performance between each battery cell 1 and ensure the safety distance between each battery cell 1, and each accommodating cavity 50 accommodates a battery cell 1 respectively.

[0030] Among them, the battery cell 1 can adopt a cylindrical 21700 battery cell, and the four battery cells 1 in the positioning frame 5 constitute a 2S2P structure. The positioning frame 5 can effectively fix the protection circuit board 2 and the battery pack to prevent short circuit. The battery equipment can pass the 2.0M drop test, and the output mode of the battery equipment can be 5P plug-in terminal output, which can meet the needs of automatic patch.

[0031] Preferably, the side of the positioning frame 5 close to the protection circuit board 2 has a through column 52 penetrating the protection circuit board 2, the mounting shell 4 has a through hole 44 corresponding to the through column 52, and the through column 52 is sealed and connected to the through hole 44 through the fixing piece 9.

[0032] Preferably, the side of the positioning frame 5 away from the protection circuit board 2 has a positioning portion 51, and the side of the battery cell 1 close to the protection circuit board 2 is connected to the protection circuit board 2 through the first adapter 6. The side of the battery cell 1 away from the protection circuit board 2 abuts against the positioning portion 51. The positioning portion 51 can prevent the battery cell 1 from falling out of the accommodating cavity 50 of the positioning frame 5. The first adapter 6 can limit the battery cell 1 and the protection circuit board 2, so that the protection circuit board 2 can press the battery cell 1 into the accommodating cavity 50 through the first adapter 6, thereby improving the installation firmness of the battery cell 1 and the protection circuit board 2.

[0033] Preferably, the first adapter 6 extends from the side of the battery cell 1 facing the protection circuit board 2 to the side of the protection circuit board 2 facing away from the battery cell 1, and an insulating member 7 is provided between the side of the protection circuit board 2 facing the battery cell 1 and the first adapter 6, so as to improve the isolation performance of the non-contact parts of the protection circuit board 2 and the first adapter 6 to prevent short circuits.

[0034] Preferably, a second adapter 8 is connected to the side of the battery cell 1 away from the protection circuit board 2, and the second adapter 8 is connected to the thermistor monitoring module of the protection circuit board 2 through a wire 80. The thermistor monitoring module adopts an NTC circuit, wherein each battery cell 1 is individually connected to the NTC circuit through each independent second adapter 8.

[0035] Preferably, the mounting shell 4 is provided with a slot 400 corresponding to the transmission terminal 3, the limiting portion 40 is provided corresponding to the slot 400, and the transmission terminal 3 is embedded in the slot 400. The mounting shell 4 includes an upper shell 41 and a lower shell 42 which are sealed and connected, the protection circuit board 2 and the transmission terminal 3 are both installed on the upper shell 41, and the outer surface of the upper shell 41 has a guide groove 43. The upper and lower shells can be fixed by locking screws.

[0036] Preferably, the positioning frame 5 has a plurality of limiting posts 54 on one side close to the protection circuit board 2, and the protection circuit board 2 has a through slot 21 corresponding to the limiting posts 54, and the limiting posts 54 are inserted into the through slot 21 or the limiting posts 54 are locked with the through slot 21 by a clamping piece. The protection circuit board 2 is loaded into the limiting posts 54 of the positioning frame 5, so that the protection circuit board 2 and the positioning frame 5 can be assembled and fixed. In addition, the side walls of the positioning frame 5 can be surrounded by a square structure so that the square structure is consistent with the protection circuit board 2 and fits tightly, so that the protection circuit board 2 can be firmly positioned.

[0037] By stably locking the positioning frame 5, the upper shell 41 and the lower shell 42, the failure of the protection board components caused by high-frequency vibration during ultrasound of the lithium battery PACK structure can be effectively avoided, thereby reducing the failure of components on the protection board caused by high-frequency vibration.

[0038] In addition, the protection circuit board 2 can be composed of a metering protection board, a charging protection board and an FPC soft board. First, the electronic components on the main board can be sealed to improve the accuracy of the USB and LED assembly. Second, the protection circuit board 2 is raised by the bone position of the plastic shell of the positioning frame 5, so that the upper and lower positions of the corresponding components have heat dissipation space, which is beneficial to the heat dissipation of the components. Third, the positioning ribs, limiting parts and card positions of the positioning frame 5 are used to achieve up, down, left and right limiting, which prevents the protection circuit board 2 from shaking left and right, and is convenient for disassembly and maintenance.

[0039] Example 2

[0040] A smart device comprises the battery of Example 1, wherein the battery may be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a magnesium ion battery, etc., wherein the smart device may be a smart speaker, a smart phone, a tablet computer, a smart robot, etc.

[0041] According to the disclosure and teaching of the above description, those skilled in the art to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the above specific implementation, and any obvious improvement, replacement or modification made by those skilled in the art on the basis of the utility model belongs to the protection scope of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A battery device, characterized in that: include: A battery cell (1), a protective circuit board (2) and a transmission terminal (3), wherein the battery cell (1), the protective circuit board (2) and the transmission terminal (3) are all arranged inside a mounting shell (4), and the protective circuit board (2) is fixedly connected to the mounting shell (4); The top of the transmission terminal (3) abuts against the limiting portion (40) of the mounting shell (4), the bottom of the transmission terminal (3) abuts against the limiting groove (20) of the protection circuit board (2), and the battery cell (1) and the transmission terminal (3) are respectively electrically connected to the protection circuit board (2).

2. The battery device according to claim 1, characterized in that: A positioning frame (5) is also provided inside the installation shell (4); the battery cell (1) is arranged in a receiving cavity (50) of the positioning frame (5); and the positioning frame (5) is fixedly connected to the protection circuit board (2) and the installation shell (4) respectively.

3. The battery device according to claim 2, characterized in that: The side of the positioning frame (5) away from the protection circuit board (2) has a positioning portion (51); the side of the battery cell (1) close to the protection circuit board (2) is connected to the protection circuit board (2) via a first adapter (6); the side of the battery cell (1) away from the protection circuit board (2) abuts against the positioning portion (51).

4. The battery device according to claim 3, characterized in that: The first adapter (6) extends from a side of the battery cell (1) facing the protective circuit board (2) to a side of the protective circuit board (2) facing away from the battery cell (1), and an insulating member (7) is provided between the side of the protective circuit board (2) facing the battery cell (1) and the first adapter (6).

5. The battery device according to any one of claims 1 to 4, characterized in that: A second adapter (8) is connected to a side of the battery cell (1) away from the protection circuit board (2), and the second adapter (8) is connected to a thermal monitoring module of the protection circuit board (2) via a wire (80).

6. The battery device according to any one of claims 1 to 4, characterized in that: The mounting shell (4) is provided with a slot (400) corresponding to the transmission terminal (3); the limiting portion (40) is arranged corresponding to the slot (400); and the transmission terminal (3) is embedded in the slot (400).

7. The battery device according to any one of claims 1 to 4, characterized in that: The mounting shell (4) comprises an upper shell (41) and a lower shell (42) which are sealed and connected, the protective circuit board (2) and the transmission terminal (3) are both mounted on the upper shell (41), and the outer surface of the upper shell (41) has a guide groove (43).

8. The battery device according to any one of claims 2 to 4, characterized in that: The positioning frame (5) has a through column (52) penetrating the protective circuit board (2) on one side thereof close to the protective circuit board (2); the mounting shell (4) has a through hole (44) corresponding to the through column (52); and the through column (52) is sealedly connected to the through hole (44) via a fixing member (9).

9. The battery device according to any one of claims 2 to 4, characterized in that: The positioning frame (5) has a plurality of spaced-apart accommodating cavities (50), and the positioning frame (5) has a blocking portion (53) for separating each of the accommodating cavities (50), and each of the accommodating cavities (50) accommodates a battery cell (1).

10. The battery device according to any one of claims 2 to 4, characterized in that: The positioning frame (5) has a plurality of limiting columns (54) on one side close to the protective circuit board (2); the protective circuit board (2) has through slots (21) corresponding to the limiting columns (54); the limiting columns (54) are inserted into the through slots (21) or the limiting columns (54) are locked with the through slots (21) via a clamping piece.

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